Tapered roller bearings are separable bearings, bearing inner and outer rings with tapered raceways line. These bearings are mounted on roller rows into single row, double row and four row tapered roller bearings, such as different structural types. Single row tapered roller bearings can bear radial load and axial load in one direction. When the bearing radial load
2013年7月26日星期五
Slewing installation instructions, instructions for use and maintenance instructions
1, the installation
(A) the screw holes on the mounting surface must be installed on the slewing ring with holes.
(2)Stainless steel slewing bearing raceway quenching soft belt (external marks "S" or clogged hole) should be placed in non-load area or non-recurring load area
Upper and lower rolling ring soft belt should be staggered 180 ° installation. Lifting, mining machinery rolling lap belt should be placed in the same soft boom direction (
I.e., the maximum load direction) of the position angle of 90 °.
(3) hanging on the slewing bracket seat plane with a feeler bearing contact with the bearing and, if the gap can be adopted
Take shim pad level, to prevent the bolt tightening after deformation, affecting slewing performance.
(4) Tighten the mounting bolts before, according to the gear pitch circle runout highest point (three teeth coated with green paint mark) regulating tooth side
Gap and the bolt tightened, the ring gear in all the backlash once the inspection.
(5) slewing bearing mounting bolts should be made of high strength bolts, and choose the right according to the force strength grade bolts. Tighten the screw
Bolt should be symmetrical in direction of 180 ° continuously, finally able to live again, to ensure the bolt circle have the same preload,
Mounting bolt washers should be used in quenched and tempered flat washers, spring washers prohibited. Order once the figure tighten the bolts.
2, slewing ring with maintenance and lubrication
(1) slewing ring raceway inside the factory plus a small amount of the 2nd extreme pressure lithium grease (GB7324-1994), enabled the root user should
According to different working conditions, re-filled with new grease.
(2) slewing ring raceway should be regularly greased. General Ball bearing grease once every 100 hours of operation, each transport roller type
Transfected 50 hours refueling time, the special working environment, such as tropical, humidity, dust, temperature changes, and continuous operation
, Lubrication intervals should be shortened. Before and after long-term operation of the machine must be stopped to add a little new grease. Each raceway must be lubricated
Is filled with grease until seeping up from the seal. Note grease, to slowly turn slewing bearings, the grease filling
Evenly.
(3) the tooth surface should be regularly cleared debris, and promptly coated with the appropriate grease.
(4) slewing ring for the first time after 100 hours of operation, check the bolt preload. 500 hours after every turn, must maintain adequate
Enough preload.
(5) the use of attention slewing operation, such as found noise, shock, a sudden increase in power should be shut down immediately seized
Investigation, troubleshooting, if necessary overhauled.
(6) Use the best to take precautions to avoid dust, rain, flooding and high temperature and other adverse effects. To prevent over
Hard foreign object approaching or entering the meshing zone.
(7) often see seals in good condition, if found damaged sealing tape should be replaced if found should be promptly reset off
.
3, Handling and Storage
(A) have been carried out at the factory slewing ring seal packaging, packaged slewing under appropriate conditions can be stored for six months.
Slewing stored every 10 months to replace grease every six months to re-rust packaging.
(2) transportation and storage in order to place the appropriate level, must be stored in a dry room.
(3) is appropriate slewing lifting eyebolt, horizontal manner, not to bump, especially the radial direction of the collision.
(4) when stacked along the circumferential direction between each support placed at least three uniform contour wood, and should be placed on the lower pad
Consistent.
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